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Merge pull request #2925 from arturo182/imx-spi

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mimxrt1010: Increase max SPI speed
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Scott Shawcroft 2020-05-18 15:22:42 -07:00 committed by GitHub
commit 32617d5f2f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 3 additions and 3 deletions
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2
ports/mimxrt10xx/common-hal/busio/SPI.c
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@ -58,7 +58,7 @@ STATIC void config_periph_pin(const mcu_periph_obj_t *periph) {
| IOMUXC_SW_PAD_CTL_PAD_SRE(0)); | IOMUXC_SW_PAD_CTL_PAD_SRE(0));
} }
#define LPSPI_MASTER_CLK_FREQ (CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) / (CLOCK_GetDiv(kCLOCK_LpspiDiv))) #define LPSPI_MASTER_CLK_FREQ (CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) / (CLOCK_GetDiv(kCLOCK_LpspiDiv) + 1))
void spi_reset(void) { void spi_reset(void) {
for (int i = 0; i < MAX_SPI; i++) { for (int i = 0; i < MAX_SPI; i++) {

4
ports/mimxrt10xx/peripherals/mimxrt10xx/MIMXRT1011/clocks.c
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@ -55,7 +55,7 @@
#define BOARD_BOOTCLOCKRUN_GPT2_IPG_CLK_HIGHFREQ 62500000UL #define BOARD_BOOTCLOCKRUN_GPT2_IPG_CLK_HIGHFREQ 62500000UL
#define BOARD_BOOTCLOCKRUN_IPG_CLK_ROOT 125000000UL #define BOARD_BOOTCLOCKRUN_IPG_CLK_ROOT 125000000UL
#define BOARD_BOOTCLOCKRUN_LPI2C_CLK_ROOT 60000000UL #define BOARD_BOOTCLOCKRUN_LPI2C_CLK_ROOT 60000000UL
#define BOARD_BOOTCLOCKRUN_LPSPI_CLK_ROOT 105600000UL #define BOARD_BOOTCLOCKRUN_LPSPI_CLK_ROOT 130900000UL
#define BOARD_BOOTCLOCKRUN_MQS_MCLK 63529411UL #define BOARD_BOOTCLOCKRUN_MQS_MCLK 63529411UL
#define BOARD_BOOTCLOCKRUN_PERCLK_CLK_ROOT 62500000UL #define BOARD_BOOTCLOCKRUN_PERCLK_CLK_ROOT 62500000UL
#define BOARD_BOOTCLOCKRUN_SAI1_CLK_ROOT 63529411UL #define BOARD_BOOTCLOCKRUN_SAI1_CLK_ROOT 63529411UL
@ -137,7 +137,7 @@ void clocks_init(void) {
CLOCK_DisableClock(kCLOCK_Lpspi1); CLOCK_DisableClock(kCLOCK_Lpspi1);
CLOCK_DisableClock(kCLOCK_Lpspi2); CLOCK_DisableClock(kCLOCK_Lpspi2);
/* Set LPSPI_PODF. */ /* Set LPSPI_PODF. */
CLOCK_SetDiv(kCLOCK_LpspiDiv, 7); CLOCK_SetDiv(kCLOCK_LpspiDiv, 2);
/* Set Lpspi clock source. */ /* Set Lpspi clock source. */
CLOCK_SetMux(kCLOCK_LpspiMux, 1); CLOCK_SetMux(kCLOCK_LpspiMux, 1);
/* Disable TRACE clock gate. */ /* Disable TRACE clock gate. */